Magnetic sensor including a free layer having perpendicular...

Details Magnetic sensor including a free layer having perpendicular... Magnetic sensor including a free layer having perpendicular...

2011-04-19

2011-04-19

Castro, Angel A. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

07929258

ABSTRACT:
A magnetic sensor includes a reference layer having a first magnetization direction and a free layer assembly having an effective magnetization direction substantially perpendicular to the first magnetization direction and substantially perpendicular to a plane of each layer of the free layer assembly. A spacer layer is between the reference layer and the free layer, and a signal enhancement layer is exchange coupled to the free layer assembly on a side opposite the spacer layer.

REFERENCES:
patent: 6219275 (2001-04-01), Nishimura
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patent: 6650513 (2003-11-01), Fullerton et al.
patent: 6967863 (2005-11-01), Huai
patent: 6992359 (2006-01-01), Nguyen et al.
patent: 7602591 (2009-10-01), Sbiaa et al.
patent: 7813202 (2010-10-01), Rodmacq et al.
patent: 2002/0167059 (2002-11-01), Nishimura et al.

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